Diptera
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Tromsdalen | Troms, Norway | 2 | 2 | 0 | 2007-06-05 | |
| Trytetjønnet | Buskerud, Norway | 1 | 1 | 0 | 1989-09-08 | |
| Tussebekken | Akershus, Norway | 6 | 3 | 0 | 1994-09-05 | |
| Tussvatnet | Nordland, Norway | 6 | 6 | 0 | 1990-06-07 | |
| Tuvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2001-06-11 | |
| Tveitavatnet | Vestland, Norway | 9 | 8 | 0 | 1991-05-23 | |
| Tveitevannet | Vestland, Norway | 9 | 8 | 0 | 2004-04-26 | |
| Tveitevannet | Vestland, Norway | 1 | 1 | 0 | 2008-09-04 | |
| Tveitevannet | Vestland, Norway | 1 | 1 | 0 | 2016-06-01 | |
| Tverrbekken | Innlandet, Norway | 12 | 3 | 0 | 1997-09-18 | |
| Tylldalen | Innlandet, Norway | 11 | 5 | 0 | 2024-04-17 | |
| Tysseelva | Vestland, Norway | 12 | 3 | 0 | 1997-09-18 | |
| Unnebergbekken | Østfold, Norway | 22 | 3 | 0 | 1996-09-16 | |
| Utistubekken | Trøndelag, Norway | 4 | 2 | 0 | 1994-06-08 | |
| Utnehagen | Vestland, Norway | 1 | 1 | 1 | 2015-11-08 | |
| Vaksvik | Møre og Romsdal, Norway | 4 | 1 | 0 | 2019-05-31 | |
| Vassbotnen | Møre og Romsdal, Norway | 2 | 2 | 0 | 2013-09-25 | |
| vassenden | Innlandet, Norway | 1 | 1 | 0 | 2019-09-10 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-10-04 | |
| Ved Svinndal kirke | Østfold, Norway | 2 | 2 | 0 | 2013-09-25 | |
| Ved UIT i Alta | Finnmark, Norway | 1 | 1 | 0 | 2015-05-07 | |
| Vendingstjørni | Vestland, Norway | 1 | 1 | 0 | 2008-09-05 | |
| Vestre Jakobselv | Finnmark, Norway | 15 | 1 | 1 | 2023-05-23 | |
| Vestre Jakobselv | Finnmark, Norway | 1 | 1 | 0 | 2015-05-10 | |
| vestretjørn | Vestland, Norway | 1 | 1 | 0 | 2004-09-10 | |
| Vestrå | Rogaland, Norway | 3 | 1 | 0 | 2022-02-05 | |
| Vesttjønn | Agder, Norway | 2 | 2 | 0 | 2013-09-03 | |
| Vikerauntjønna | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-27 | |
| Virikbekken | Vestfold, Norway | 16 | 3 | 0 | 2004-05-10 | |
| Vollsvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2013-08-30 | |
| Vågdalselva | Troms, Norway | 4 | 3 | 0 | 1995-06-02 | |
| Vålåsjøen | Innlandet, Norway | 7 | 6 | 0 | 1993-06-09 | |
| Ærdalsbassenget | Agder, Norway | 3 | 2 | 0 | 2013-09-16 | |
| Øggardselva | Møre og Romsdal, Norway | 5 | 2 | 0 | 1995-05-24 | |
| Øksnevadtjørna | Rogaland, Norway | 6 | 4 | 0 | 1993-05-28 | |
| Ørnakkelva | Nordland, Norway | 2 | 1 | 0 | 1994-05-06 | |
| Ørskogkvia | Møre og Romsdal, Norway | 1 | 1 | 0 | 2005-08-30 | |
| Østernvannet | Akershus, Norway | 1 | 1 | 0 | 1990-08-28 | |
| Østeråa | Telemark, Norway | 1 | 1 | 0 | 2013-09-26 | |
| Øvre Mjølsnes | Rogaland, Norway | 1 | 1 | 0 | 2009-05-30 | |
| Øvre Storfjordvatnet | Nordland, Norway | 30 | 23 | 0 | 1991-09-04 | |
| Øvsttunstemmen | Vestland, Norway | 3 | 1 | 0 | 2013-04-24 | |
| Ågårdsdam | Troms, Norway | 3 | 2 | 0 | 2013-09-13 | |
| Ålesundsaksla | Møre og Romsdal, Norway | 1 | 1 | 0 | 1999-09-28 | |
| Ålvatnet | Trøndelag, Norway | 4 | 3 | 0 | 2013-08-30 | |
| Årnestangen | Akershus, Norway | 1 | 1 | 0 | 2003-06-06 | |
| Årungen | Akershus, Norway | 8 | 5 | 0 | 1995-09-18 | |
| Åsen | Telemark, Norway | 2 | 2 | 0 | 2019-04-18 | |
| Åsleiastubben | Akershus, Norway | 1 | 1 | 0 | 2016-03-16 | |
| Åstveitvannet | Vestland, Norway | 14 | 12 | 0 | 1990-09-18 |